Atte Kettunen discovered that Firefox could perform an out-of-bounds read
while rendering GIF format images. An attacker could exploit this to crash
Firefox. (CVE-2013-0772)

Boris Zbarsky discovered that Firefox did not properly handle some wrapped
WebIDL objects. If the user were tricked into opening a specially crafted
page, an attacker could possibly exploit this to cause a denial of service
via application crash, or potentially execute code with the privileges of
the user invoking Firefox. (CVE-2013-0765)

Bobby Holley discovered vulnerabilities in Chrome Object Wrappers (COW) and
System Only Wrappers (SOW). If a user were tricked into opening a specially
crafted page, a remote attacker could exploit this to bypass security
protections to obtain sensitive information or potentially execute code
with the privileges of the user invoking Firefox. (CVE-2013-0773)

Frederik Braun discovered that Firefox made the location of the active
browser profile available to JavaScript workers. (CVE-2013-0774)

A use-after-free vulnerability was discovered in Firefox. An attacker could
potentially exploit this to execute code with the privileges of the user
invoking Firefox. (CVE-2013-0775)

Michal Zalewski discovered that Firefox would not always show the correct
address when cancelling a proxy authentication prompt. A remote attacker
could exploit this to conduct URL spoofing and phishing attacks.
(CVE-2013-0776)

Abhishek Arya discovered several problems related to memory handling. If
the user were tricked into opening a specially crafted page, an attacker
could possibly exploit these to cause a denial of service via application
crash, or potentially execute code with the privileges of the user invoking
Firefox. (CVE-2013-0777, CVE-2013-0778, CVE-2013-0779, CVE-2013-0780,
CVE-2013-0781, CVE-2013-0782)

Update instructions

The problem can be corrected by updating your system to the following package versions: